/*格式化日期格式*/
function changeDateFormat(cellval) {
		if (cellval != null){
		    var date = new Date(cellval);
		    var month = date.getMonth() + 1 < 10 ? "0" + (date.getMonth() + 1) : date.getMonth() + 1;
		    var currentDate = date.getDate() < 10 ? "0" + date.getDate() : date.getDate();
		    return date.getFullYear() + "-" + month + "-" + currentDate;
		    }
		}